Question

Use the formula below to solve the given problem. In the formula, d

represents the distance an object falls, in meters, and trepresents the time
that an object falls, in seconds. Do not include units in your answer.
A penny dropped from the top of the tallest building in town takes 10.2
seconds to reach the street. What is the height of the building?

Answer 1

The correct answer would be 122.5

Answer 2

The distance the object falls is of 50 meters.

Explanation:

We are given the following formula:

`√(d) = t√(4.9)`

In which d is the distance the object falls and t is the time it takes to fall.

A penny dropped from the top of the tallest building in town takes 10.2 seconds to reach the street.

This means that
`t = 10.2`

What is the height of the building?

`√(d) = t√(4.9)`

`(√(d))^2 = (t√(4.9))^2`

`d = 4.9t^2 = 4.9(10.2) = 50`

The distance the object falls is of 50 meters.